Collapsible bed



Feb. 6, 11923, LMMLMB F. M. STULL. COLLAPSIBLE BED.

Fl LED SEPT. 26 i921 2 SHEETS-SHEET 2 IN VEN TOR.

wwf/M 57014 ATTORNEY.

Patented Feb.. d, l

COL'LE'SBLE BED.

.Application filed September 26, 1921. Serial No. 503,376.

To aZZ whom it may cof/werfe Be it known that l, FRANK M. STOLL, a citizen of the United States, and a resident of Denver, in thel county of Denver and State of Colorado, have invented certain new and useful Improvements in Collapsible Beds; ot' which l do declare the following to be a full, clear, and exact description of the same,- such as will enable others, skilled in the art to which it appertains, to make and use my invention, reference being had to the accompanying drawings, and to the reference numerals marked thereon, which form apart of this specification.

The invention relates to improvements in collapsible beds, particularly ot the type adapted to be folded into a small compact bundle for carrying in an automobile and used for camping purposes.

The principal object ot my invention is to provide a bed of this character which will have a minimum ot parts, be light in weight, simple in construction, and easily folded or extended.

Another object of the invention is to provide a collapsible bed, having a mattress adapted to act as a container for the bed when saine is collapsed. i

A further object of my invention is to provide means for stretching the mattress supporting springs taut with a minimum of eiffort.

A still further object of the invention resides in the detail construction ot the col lapsible frame work of the bed, whereby the same may be quickly and easily folded "and yet when extended will torm a rigid and substantial supporting structure.

With these and other objects iii-view', the

invention will now be described in detail,

with reference to the accompany drawings.

(inthe drawings:

Figure l, is a perspective view ot the col# lapsible bed extended ready for use;

Figure 2, is a side elevation of the same partly broken away;

Figure 3, is afsectional view taken on the line 3-3, Fig. 7

Figure 4, lis a detail view of the detachable end of the spring tightening brace;

Figure 5, is a detail planview showing the operation of the spring 4tightening lever;

Figure 6, is a side elevation of one of the longitudinal membersn its collapsed position;

Figure T, is a sectional view taken on the line 77, Fig. 5; Figure 8, is a perspective view of the bed in its collapsed position rolled and strapped in the mattress ready for packing or carrying by the same reference characters.

Let the numeral l() represent one ot the end bars o the bed and the numeral ll the other. End bar l0 is stationary when the structure is erected, while end bar 11 is movable lengthwise of the bed for the purpose of stretching or tightening the mattress supportingr springs, as will be hereinafter described.

Suspended between the end bars is the usual flexible spring structure l2, upon which is placed the mattress 13. End bar l() is supported by legs l5 and 16, while the end bar ll is supported by legs 17 and 1.8.

A longitudinal member 19 is pivoted to and connects legs l@ and l, while a similar longitudinal member 20 similarly connects legs l5 and l?, longitudinal members 1S) and 2O are U shaped in cross section and are each formed of two parts, pivoted together at the mid-point of each member as shown l'he legs 15, 16, l? and 18 are 5m shaped in cross section, and at their upper entremities or points of intersection with the end bars 1G and ll, one oit the sides of the L is allowed to entend upward beyond the other and is bent to orm a hool; 22, as indicated in Fig. 3, ln erecting the bed these projecting hooks 22 of each leg are passed through openings 23 formed in the end bars l0 and 11 and are hooked over the edges of the same, the weight' of the end bars resting upon the end of the shorter sides ot the L shaped legs. A pivoted wedge or clamp 2li, attached to the end bars 10 and 1l is now forced into the opening 23 alongside of the hook 22 and eeetively prevents its becoming disengaged while the bed is in use. This method of locking the legs is clearly shown in Fig. 3, and is believed to be a new and valuable feature in beds of this type. When it is desired to release the end bars from the legs, the clamp 24e is raised to the broken line position shown in Fig. 7, when the' legs lcan be easily unhooked and detached.

liti@ Pivoted to end bar 10 are two diagonal braces 14, which 'terminate at their free extremities in hook shaped projections 25, which are adapted toengage i'n openings formed therefor in longitudinal members 19 and 20. In erecting the bed, the hooks 25 of diagonalbraces 14.- are engaged in their openings in the longitudinal members before the end ba'r 10 is locked to the legs, as above described, after which time they cannot)` be disengaged until the end bar '10 is a ain released from vitssupporting legs.

his end of the bed is erected l'irst.

Pivoted to end bar 11 are two diagonal braces 26, which terminate at their free extremities as shown in Fig. 4; having pins 27 riveted therein, said ins being provided with an upset portion orming' a shoulder 28. Each of the pins 27 isadapted to engage in an opening 29 formed in a lever 30 pivoted to each longitudinal member 19 and 20, 'as shown at 31. The levers 30 normally lie along the top of the longitudinal members 19 and 20 and have two raised portions formed; therein, one for holding the pivot hole 29 up, so that it may be engaged by the pivot pins 27, another designated by the numeral 32, forming a hand hold for graspin F 5 to the full lme positions, shown in VFigs; -2 and 5, when they are again locked ing the lever. 'The free extremity of the lever 30 is turned downward, as shown at 34, to engage in holes 33 formed in the longitudinal members, for the purpose of locking it in place at the two extreme positions of its throw. V

In erecting this end of the bed, which is erected last, the end bar 11 is placed on, and locked to the legs 17 and 18 as heretofore described; the lever 30 is placed in the vposition shown in Fig. 6, and in broken lines in Figs. 2 and 5; the legs 17 and 18 are tilted as indicated in broken lines in Fig. 2; the pins 27 are engaged in the openings 29 in the levers 30; the levers 30 are then raised from their locking holes 33- vand swung around as indicated by the dotted semi-circle in thel opposite locking holes, 33. A stop 35 is provided to prevent the lever from being thrown too far. This operation results in moving the end bar 11 from-the, broken line position in Fig. 5 to the full line position in the same figure which stretches the mattress supporting springs 12 taut .ready for use,

and effectively locks the whole supporting structure in a rigid position. This lever and method of tightening the springs -is believed former position (thejbroken line position of Fig. 5), whichV releases the tension in the L upon their pivot po-int 21 and folded within themselves as shown in Fig. 6. The longitudinal members with their attached legs are equal in length to the width of the bed. The folded longitudinal members are now laid upon the mattress with the spring structure and end bars and the whole rolled within the mattress. The caps 36 are then slipped over the ends ofthe bundle thus obtained andstrapped together in a compact bundleas shown in Fig. 8.` The straps are carried fastened to the mattress so as to be in their proper positions for use.

Projecting pins 38 are carried by the vertical leg of the Lshaped end bars 10 and`11,

and bear against each side of each leg and hold same always perpendicular to the end p bars.

Having thus described my invention, what I claim and desire to secure by Letters Pattent is 1. The combination in a bed of the class described, of end bars supporting a flexible spring structure; legs detachably connected to said end bars and' adapted to fold Within -braces extending from said end bars to said levers and communicating the motion of said levers to said end bars for the purpose of 'bringing said legs to and locking them in their operative position and also simultaneously stretching said spring structure.

3. The combination in a bed of the class described, of end bars supporting a iexible v sprlng structure; legs detachably engaging and supporting said end bars; longitudinal members pivoted to and separating said legs; 4levers fulcruined on said longitudinal members; diagonal braces' extending from one of ysaid end barsl and detachablyengaging said longitudinal members; other diagonal braces extending from the opposite end bar and detachably engaging said levers for the purpose of communicating the action of said lever to said end bar and legs for the purpose of tightening said spring structure and bringing said legs into operative position.

4. The combination in a bed of the class described, or' horizontal, longitudinal members; legs pivoted at each end of said longitudinal members; end members detachably connected to the upperextremities of said legs at the opposite ends of the bed and adapted to support a flexible spring structure; diagonal braces pivoted to one of said end members at their one extremity and being detachably connected to said longitudinal members at their other extremity; means for stretching said flexible spring structure, comprising levers pivoted to said longitudinal members', braces pivoted to one vof said end members and detachably engaging said levers; means for locking said levers at their extreme positions.

5. rll`he combination in a bed of the class described, of end bars supporting a flexible spring structure; legs L shaped in cross section detachably engaging said end bars, one

side of said i. shaped leg being adapted to support said end` bars, the opposite side being adapted to project through an opening formed in said end bars and being provided With a hook-like projection adapted to engage the edge of said opening; pivoted clamps adapted to engage in said openings to prevent said hook-like projections from becoming disengaged; means for rolling said legs perpendicular to said end bars;

longitudinal horizontal members separat-l ing said legs; diagonal braces extending from said horizontal members to said end bars.

G. The combination in a bed of the class described, of a collapsible supporting structure; a mattress detachably attached to said supporting structure being adapted to roll around and form a container for said bed when same is collapsed and said mattress having caps or hoods and straps attached thereto adapted to it over the ends of the bundle formed by the collapsed bed and rolled mattress and bind same into a compact bundle.

In testimony whereof, l ax my signature.

FRANK M. STOLL. 

